| import os | 
 | import sys | 
 | import unittest | 
 | import ast | 
 | import weakref | 
 |  | 
 | from test import support | 
 |  | 
 | def to_tuple(t): | 
 |     if t is None or isinstance(t, (str, int, complex)): | 
 |         return t | 
 |     elif isinstance(t, list): | 
 |         return [to_tuple(e) for e in t] | 
 |     result = [t.__class__.__name__] | 
 |     if hasattr(t, 'lineno') and hasattr(t, 'col_offset'): | 
 |         result.append((t.lineno, t.col_offset)) | 
 |     if t._fields is None: | 
 |         return tuple(result) | 
 |     for f in t._fields: | 
 |         result.append(to_tuple(getattr(t, f))) | 
 |     return tuple(result) | 
 |  | 
 |  | 
 | # These tests are compiled through "exec" | 
 | # There should be at least one test per statement | 
 | exec_tests = [ | 
 |     # None | 
 |     "None", | 
 |     # FunctionDef | 
 |     "def f(): pass", | 
 |     # FunctionDef with arg | 
 |     "def f(a): pass", | 
 |     # FunctionDef with arg and default value | 
 |     "def f(a=0): pass", | 
 |     # FunctionDef with varargs | 
 |     "def f(*args): pass", | 
 |     # FunctionDef with kwargs | 
 |     "def f(**kwargs): pass", | 
 |     # FunctionDef with all kind of args | 
 |     "def f(a, b=1, c=None, d=[], e={}, *args, **kwargs): pass", | 
 |     # ClassDef | 
 |     "class C:pass", | 
 |     # ClassDef, new style class | 
 |     "class C(object): pass", | 
 |     # Return | 
 |     "def f():return 1", | 
 |     # Delete | 
 |     "del v", | 
 |     # Assign | 
 |     "v = 1", | 
 |     # AugAssign | 
 |     "v += 1", | 
 |     # For | 
 |     "for v in v:pass", | 
 |     # While | 
 |     "while v:pass", | 
 |     # If | 
 |     "if v:pass", | 
 |     # With | 
 |     "with x as y: pass", | 
 |     "with x as y, z as q: pass", | 
 |     # Raise | 
 |     "raise Exception('string')", | 
 |     # TryExcept | 
 |     "try:\n  pass\nexcept Exception:\n  pass", | 
 |     # TryFinally | 
 |     "try:\n  pass\nfinally:\n  pass", | 
 |     # Assert | 
 |     "assert v", | 
 |     # Import | 
 |     "import sys", | 
 |     # ImportFrom | 
 |     "from sys import v", | 
 |     # Global | 
 |     "global v", | 
 |     # Expr | 
 |     "1", | 
 |     # Pass, | 
 |     "pass", | 
 |     # Break | 
 |     "break", | 
 |     # Continue | 
 |     "continue", | 
 |     # for statements with naked tuples (see http://bugs.python.org/issue6704) | 
 |     "for a,b in c: pass", | 
 |     "[(a,b) for a,b in c]", | 
 |     "((a,b) for a,b in c)", | 
 |     "((a,b) for (a,b) in c)", | 
 |     # Multiline generator expression (test for .lineno & .col_offset) | 
 |     """( | 
 |     ( | 
 |     Aa | 
 |     , | 
 |        Bb | 
 |     ) | 
 |     for | 
 |     Aa | 
 |     , | 
 |     Bb in Cc | 
 |     )""", | 
 |     # dictcomp | 
 |     "{a : b for w in x for m in p if g}", | 
 |     # dictcomp with naked tuple | 
 |     "{a : b for v,w in x}", | 
 |     # setcomp | 
 |     "{r for l in x if g}", | 
 |     # setcomp with naked tuple | 
 |     "{r for l,m in x}", | 
 | ] | 
 |  | 
 | # These are compiled through "single" | 
 | # because of overlap with "eval", it just tests what | 
 | # can't be tested with "eval" | 
 | single_tests = [ | 
 |     "1+2" | 
 | ] | 
 |  | 
 | # These are compiled through "eval" | 
 | # It should test all expressions | 
 | eval_tests = [ | 
 |   # None | 
 |   "None", | 
 |   # BoolOp | 
 |   "a and b", | 
 |   # BinOp | 
 |   "a + b", | 
 |   # UnaryOp | 
 |   "not v", | 
 |   # Lambda | 
 |   "lambda:None", | 
 |   # Dict | 
 |   "{ 1:2 }", | 
 |   # Empty dict | 
 |   "{}", | 
 |   # Set | 
 |   "{None,}", | 
 |   # Multiline dict (test for .lineno & .col_offset) | 
 |   """{ | 
 |       1 | 
 |         : | 
 |           2 | 
 |      }""", | 
 |   # ListComp | 
 |   "[a for b in c if d]", | 
 |   # GeneratorExp | 
 |   "(a for b in c if d)", | 
 |   # Yield - yield expressions can't work outside a function | 
 |   # | 
 |   # Compare | 
 |   "1 < 2 < 3", | 
 |   # Call | 
 |   "f(1,2,c=3,*d,**e)", | 
 |   # Num | 
 |   "10", | 
 |   # Str | 
 |   "'string'", | 
 |   # Attribute | 
 |   "a.b", | 
 |   # Subscript | 
 |   "a[b:c]", | 
 |   # Name | 
 |   "v", | 
 |   # List | 
 |   "[1,2,3]", | 
 |   # Empty list | 
 |   "[]", | 
 |   # Tuple | 
 |   "1,2,3", | 
 |   # Tuple | 
 |   "(1,2,3)", | 
 |   # Empty tuple | 
 |   "()", | 
 |   # Combination | 
 |   "a.b.c.d(a.b[1:2])", | 
 |  | 
 | ] | 
 |  | 
 | # TODO: expr_context, slice, boolop, operator, unaryop, cmpop, comprehension | 
 | # excepthandler, arguments, keywords, alias | 
 |  | 
 | class AST_Tests(unittest.TestCase): | 
 |  | 
 |     def _assertTrueorder(self, ast_node, parent_pos, reverse_check = False): | 
 |         def should_reverse_check(parent, child): | 
 |             # In some situations, the children of nodes occur before | 
 |             # their parents, for example in a.b.c, a occurs before b | 
 |             # but a is a child of b. | 
 |             if isinstance(parent, ast.Call): | 
 |                 if parent.func == child: | 
 |                     return True | 
 |             if isinstance(parent, (ast.Attribute, ast.Subscript)): | 
 |                 return True | 
 |             return False | 
 |  | 
 |         if not isinstance(ast_node, ast.AST) or ast_node._fields is None: | 
 |             return | 
 |         if isinstance(ast_node, (ast.expr, ast.stmt, ast.excepthandler)): | 
 |             node_pos = (ast_node.lineno, ast_node.col_offset) | 
 |             if reverse_check: | 
 |                 self.assertTrue(node_pos <= parent_pos) | 
 |             else: | 
 |                 self.assertTrue(node_pos >= parent_pos) | 
 |             parent_pos = (ast_node.lineno, ast_node.col_offset) | 
 |         for name in ast_node._fields: | 
 |             value = getattr(ast_node, name) | 
 |             if isinstance(value, list): | 
 |                 for child in value: | 
 |                     self._assertTrueorder(child, parent_pos, | 
 |                                          should_reverse_check(ast_node, child)) | 
 |             elif value is not None: | 
 |                 self._assertTrueorder(value, parent_pos, | 
 |                                       should_reverse_check(ast_node, value)) | 
 |  | 
 |     def test_AST_objects(self): | 
 |         x = ast.AST() | 
 |         self.assertEqual(x._fields, ()) | 
 |         x.foobar = 42 | 
 |         self.assertEqual(x.foobar, 42) | 
 |         self.assertEqual(x.__dict__["foobar"], 42) | 
 |  | 
 |         with self.assertRaises(AttributeError): | 
 |             x.vararg | 
 |  | 
 |         with self.assertRaises(TypeError): | 
 |             # "_ast.AST constructor takes 0 positional arguments" | 
 |             ast.AST(2) | 
 |  | 
 |     def test_AST_garbage_collection(self): | 
 |         class X: | 
 |             pass | 
 |         a = ast.AST() | 
 |         a.x = X() | 
 |         a.x.a = a | 
 |         ref = weakref.ref(a.x) | 
 |         del a | 
 |         support.gc_collect() | 
 |         self.assertIsNone(ref()) | 
 |  | 
 |     def test_snippets(self): | 
 |         for input, output, kind in ((exec_tests, exec_results, "exec"), | 
 |                                     (single_tests, single_results, "single"), | 
 |                                     (eval_tests, eval_results, "eval")): | 
 |             for i, o in zip(input, output): | 
 |                 ast_tree = compile(i, "?", kind, ast.PyCF_ONLY_AST) | 
 |                 self.assertEqual(to_tuple(ast_tree), o) | 
 |                 self._assertTrueorder(ast_tree, (0, 0)) | 
 |  | 
 |     def test_slice(self): | 
 |         slc = ast.parse("x[::]").body[0].value.slice | 
 |         self.assertIsNone(slc.upper) | 
 |         self.assertIsNone(slc.lower) | 
 |         self.assertIsNone(slc.step) | 
 |  | 
 |     def test_from_import(self): | 
 |         im = ast.parse("from . import y").body[0] | 
 |         self.assertIsNone(im.module) | 
 |  | 
 |     def test_non_interned_future_from_ast(self): | 
 |         mod = ast.parse("from __future__ import division") | 
 |         self.assertIsInstance(mod.body[0], ast.ImportFrom) | 
 |         mod.body[0].module = " __future__ ".strip() | 
 |         compile(mod, "<test>", "exec") | 
 |  | 
 |     def test_base_classes(self): | 
 |         self.assertTrue(issubclass(ast.For, ast.stmt)) | 
 |         self.assertTrue(issubclass(ast.Name, ast.expr)) | 
 |         self.assertTrue(issubclass(ast.stmt, ast.AST)) | 
 |         self.assertTrue(issubclass(ast.expr, ast.AST)) | 
 |         self.assertTrue(issubclass(ast.comprehension, ast.AST)) | 
 |         self.assertTrue(issubclass(ast.Gt, ast.AST)) | 
 |  | 
 |     def test_field_attr_existence(self): | 
 |         for name, item in ast.__dict__.items(): | 
 |             if isinstance(item, type) and name != 'AST' and name[0].isupper(): | 
 |                 x = item() | 
 |                 if isinstance(x, ast.AST): | 
 |                     self.assertEqual(type(x._fields), tuple) | 
 |  | 
 |     def test_arguments(self): | 
 |         x = ast.arguments() | 
 |         self.assertEqual(x._fields, ('args', 'vararg', | 
 |                                       'kwonlyargs', 'kw_defaults', | 
 |                                       'kwarg', 'defaults')) | 
 |  | 
 |         with self.assertRaises(AttributeError): | 
 |             x.vararg | 
 |  | 
 |         x = ast.arguments(*range(1, 7)) | 
 |         self.assertEqual(x.vararg, 2) | 
 |  | 
 |     def test_field_attr_writable(self): | 
 |         x = ast.Num() | 
 |         # We can assign to _fields | 
 |         x._fields = 666 | 
 |         self.assertEqual(x._fields, 666) | 
 |  | 
 |     def test_classattrs(self): | 
 |         x = ast.Num() | 
 |         self.assertEqual(x._fields, ('n',)) | 
 |  | 
 |         with self.assertRaises(AttributeError): | 
 |             x.n | 
 |  | 
 |         x = ast.Num(42) | 
 |         self.assertEqual(x.n, 42) | 
 |  | 
 |         with self.assertRaises(AttributeError): | 
 |             x.lineno | 
 |  | 
 |         with self.assertRaises(AttributeError): | 
 |             x.foobar | 
 |  | 
 |         x = ast.Num(lineno=2) | 
 |         self.assertEqual(x.lineno, 2) | 
 |  | 
 |         x = ast.Num(42, lineno=0) | 
 |         self.assertEqual(x.lineno, 0) | 
 |         self.assertEqual(x._fields, ('n',)) | 
 |         self.assertEqual(x.n, 42) | 
 |  | 
 |         self.assertRaises(TypeError, ast.Num, 1, 2) | 
 |         self.assertRaises(TypeError, ast.Num, 1, 2, lineno=0) | 
 |  | 
 |     def test_module(self): | 
 |         body = [ast.Num(42)] | 
 |         x = ast.Module(body) | 
 |         self.assertEqual(x.body, body) | 
 |  | 
 |     def test_nodeclasses(self): | 
 |         # Zero arguments constructor explicitly allowed | 
 |         x = ast.BinOp() | 
 |         self.assertEqual(x._fields, ('left', 'op', 'right')) | 
 |  | 
 |         # Random attribute allowed too | 
 |         x.foobarbaz = 5 | 
 |         self.assertEqual(x.foobarbaz, 5) | 
 |  | 
 |         n1 = ast.Num(1) | 
 |         n3 = ast.Num(3) | 
 |         addop = ast.Add() | 
 |         x = ast.BinOp(n1, addop, n3) | 
 |         self.assertEqual(x.left, n1) | 
 |         self.assertEqual(x.op, addop) | 
 |         self.assertEqual(x.right, n3) | 
 |  | 
 |         x = ast.BinOp(1, 2, 3) | 
 |         self.assertEqual(x.left, 1) | 
 |         self.assertEqual(x.op, 2) | 
 |         self.assertEqual(x.right, 3) | 
 |  | 
 |         x = ast.BinOp(1, 2, 3, lineno=0) | 
 |         self.assertEqual(x.left, 1) | 
 |         self.assertEqual(x.op, 2) | 
 |         self.assertEqual(x.right, 3) | 
 |         self.assertEqual(x.lineno, 0) | 
 |  | 
 |         # node raises exception when not given enough arguments | 
 |         self.assertRaises(TypeError, ast.BinOp, 1, 2) | 
 |         # node raises exception when given too many arguments | 
 |         self.assertRaises(TypeError, ast.BinOp, 1, 2, 3, 4) | 
 |         # node raises exception when not given enough arguments | 
 |         self.assertRaises(TypeError, ast.BinOp, 1, 2, lineno=0) | 
 |         # node raises exception when given too many arguments | 
 |         self.assertRaises(TypeError, ast.BinOp, 1, 2, 3, 4, lineno=0) | 
 |  | 
 |         # can set attributes through kwargs too | 
 |         x = ast.BinOp(left=1, op=2, right=3, lineno=0) | 
 |         self.assertEqual(x.left, 1) | 
 |         self.assertEqual(x.op, 2) | 
 |         self.assertEqual(x.right, 3) | 
 |         self.assertEqual(x.lineno, 0) | 
 |  | 
 |         # Random kwargs also allowed | 
 |         x = ast.BinOp(1, 2, 3, foobarbaz=42) | 
 |         self.assertEqual(x.foobarbaz, 42) | 
 |  | 
 |     def test_no_fields(self): | 
 |         # this used to fail because Sub._fields was None | 
 |         x = ast.Sub() | 
 |         self.assertEqual(x._fields, ()) | 
 |  | 
 |     def test_pickling(self): | 
 |         import pickle | 
 |         mods = [pickle] | 
 |         try: | 
 |             import cPickle | 
 |             mods.append(cPickle) | 
 |         except ImportError: | 
 |             pass | 
 |         protocols = [0, 1, 2] | 
 |         for mod in mods: | 
 |             for protocol in protocols: | 
 |                 for ast in (compile(i, "?", "exec", 0x400) for i in exec_tests): | 
 |                     ast2 = mod.loads(mod.dumps(ast, protocol)) | 
 |                     self.assertEqual(to_tuple(ast2), to_tuple(ast)) | 
 |  | 
 |     def test_invalid_sum(self): | 
 |         pos = dict(lineno=2, col_offset=3) | 
 |         m = ast.Module([ast.Expr(ast.expr(**pos), **pos)]) | 
 |         with self.assertRaises(TypeError) as cm: | 
 |             compile(m, "<test>", "exec") | 
 |         self.assertIn("but got <_ast.expr", str(cm.exception)) | 
 |  | 
 |     def test_invalid_identitifer(self): | 
 |         m = ast.Module([ast.Expr(ast.Name(42, ast.Load()))]) | 
 |         ast.fix_missing_locations(m) | 
 |         with self.assertRaises(TypeError) as cm: | 
 |             compile(m, "<test>", "exec") | 
 |         self.assertIn("identifier must be of type str", str(cm.exception)) | 
 |  | 
 |     def test_invalid_string(self): | 
 |         m = ast.Module([ast.Expr(ast.Str(42))]) | 
 |         ast.fix_missing_locations(m) | 
 |         with self.assertRaises(TypeError) as cm: | 
 |             compile(m, "<test>", "exec") | 
 |         self.assertIn("string must be of type str", str(cm.exception)) | 
 |  | 
 |     def test_empty_yield_from(self): | 
 |         # Issue 16546: yield from value is not optional. | 
 |         empty_yield_from = ast.parse("def f():\n yield from g()") | 
 |         empty_yield_from.body[0].body[0].value.value = None | 
 |         with self.assertRaises(ValueError) as cm: | 
 |             compile(empty_yield_from, "<test>", "exec") | 
 |         self.assertIn("field value is required", str(cm.exception)) | 
 |  | 
 |  | 
 | class ASTHelpers_Test(unittest.TestCase): | 
 |  | 
 |     def test_parse(self): | 
 |         a = ast.parse('foo(1 + 1)') | 
 |         b = compile('foo(1 + 1)', '<unknown>', 'exec', ast.PyCF_ONLY_AST) | 
 |         self.assertEqual(ast.dump(a), ast.dump(b)) | 
 |  | 
 |     def test_parse_in_error(self): | 
 |         try: | 
 |             1/0 | 
 |         except Exception: | 
 |             with self.assertRaises(SyntaxError) as e: | 
 |                 ast.literal_eval(r"'\U'") | 
 |             self.assertIsNotNone(e.exception.__context__) | 
 |  | 
 |     def test_dump(self): | 
 |         node = ast.parse('spam(eggs, "and cheese")') | 
 |         self.assertEqual(ast.dump(node), | 
 |             "Module(body=[Expr(value=Call(func=Name(id='spam', ctx=Load()), " | 
 |             "args=[Name(id='eggs', ctx=Load()), Str(s='and cheese')], " | 
 |             "keywords=[], starargs=None, kwargs=None))])" | 
 |         ) | 
 |         self.assertEqual(ast.dump(node, annotate_fields=False), | 
 |             "Module([Expr(Call(Name('spam', Load()), [Name('eggs', Load()), " | 
 |             "Str('and cheese')], [], None, None))])" | 
 |         ) | 
 |         self.assertEqual(ast.dump(node, include_attributes=True), | 
 |             "Module(body=[Expr(value=Call(func=Name(id='spam', ctx=Load(), " | 
 |             "lineno=1, col_offset=0), args=[Name(id='eggs', ctx=Load(), " | 
 |             "lineno=1, col_offset=5), Str(s='and cheese', lineno=1, " | 
 |             "col_offset=11)], keywords=[], starargs=None, kwargs=None, " | 
 |             "lineno=1, col_offset=4), lineno=1, col_offset=0)])" | 
 |         ) | 
 |  | 
 |     def test_copy_location(self): | 
 |         src = ast.parse('1 + 1', mode='eval') | 
 |         src.body.right = ast.copy_location(ast.Num(2), src.body.right) | 
 |         self.assertEqual(ast.dump(src, include_attributes=True), | 
 |             'Expression(body=BinOp(left=Num(n=1, lineno=1, col_offset=0), ' | 
 |             'op=Add(), right=Num(n=2, lineno=1, col_offset=4), lineno=1, ' | 
 |             'col_offset=0))' | 
 |         ) | 
 |  | 
 |     def test_fix_missing_locations(self): | 
 |         src = ast.parse('write("spam")') | 
 |         src.body.append(ast.Expr(ast.Call(ast.Name('spam', ast.Load()), | 
 |                                           [ast.Str('eggs')], [], None, None))) | 
 |         self.assertEqual(src, ast.fix_missing_locations(src)) | 
 |         self.assertEqual(ast.dump(src, include_attributes=True), | 
 |             "Module(body=[Expr(value=Call(func=Name(id='write', ctx=Load(), " | 
 |             "lineno=1, col_offset=0), args=[Str(s='spam', lineno=1, " | 
 |             "col_offset=6)], keywords=[], starargs=None, kwargs=None, " | 
 |             "lineno=1, col_offset=5), lineno=1, col_offset=0), " | 
 |             "Expr(value=Call(func=Name(id='spam', ctx=Load(), lineno=1, " | 
 |             "col_offset=0), args=[Str(s='eggs', lineno=1, col_offset=0)], " | 
 |             "keywords=[], starargs=None, kwargs=None, lineno=1, " | 
 |             "col_offset=0), lineno=1, col_offset=0)])" | 
 |         ) | 
 |  | 
 |     def test_increment_lineno(self): | 
 |         src = ast.parse('1 + 1', mode='eval') | 
 |         self.assertEqual(ast.increment_lineno(src, n=3), src) | 
 |         self.assertEqual(ast.dump(src, include_attributes=True), | 
 |             'Expression(body=BinOp(left=Num(n=1, lineno=4, col_offset=0), ' | 
 |             'op=Add(), right=Num(n=1, lineno=4, col_offset=4), lineno=4, ' | 
 |             'col_offset=0))' | 
 |         ) | 
 |         # issue10869: do not increment lineno of root twice | 
 |         src = ast.parse('1 + 1', mode='eval') | 
 |         self.assertEqual(ast.increment_lineno(src.body, n=3), src.body) | 
 |         self.assertEqual(ast.dump(src, include_attributes=True), | 
 |             'Expression(body=BinOp(left=Num(n=1, lineno=4, col_offset=0), ' | 
 |             'op=Add(), right=Num(n=1, lineno=4, col_offset=4), lineno=4, ' | 
 |             'col_offset=0))' | 
 |         ) | 
 |  | 
 |     def test_iter_fields(self): | 
 |         node = ast.parse('foo()', mode='eval') | 
 |         d = dict(ast.iter_fields(node.body)) | 
 |         self.assertEqual(d.pop('func').id, 'foo') | 
 |         self.assertEqual(d, {'keywords': [], 'kwargs': None, | 
 |                              'args': [], 'starargs': None}) | 
 |  | 
 |     def test_iter_child_nodes(self): | 
 |         node = ast.parse("spam(23, 42, eggs='leek')", mode='eval') | 
 |         self.assertEqual(len(list(ast.iter_child_nodes(node.body))), 4) | 
 |         iterator = ast.iter_child_nodes(node.body) | 
 |         self.assertEqual(next(iterator).id, 'spam') | 
 |         self.assertEqual(next(iterator).n, 23) | 
 |         self.assertEqual(next(iterator).n, 42) | 
 |         self.assertEqual(ast.dump(next(iterator)), | 
 |             "keyword(arg='eggs', value=Str(s='leek'))" | 
 |         ) | 
 |  | 
 |     def test_get_docstring(self): | 
 |         node = ast.parse('def foo():\n  """line one\n  line two"""') | 
 |         self.assertEqual(ast.get_docstring(node.body[0]), | 
 |                          'line one\nline two') | 
 |  | 
 |     def test_literal_eval(self): | 
 |         self.assertEqual(ast.literal_eval('[1, 2, 3]'), [1, 2, 3]) | 
 |         self.assertEqual(ast.literal_eval('{"foo": 42}'), {"foo": 42}) | 
 |         self.assertEqual(ast.literal_eval('(True, False, None)'), (True, False, None)) | 
 |         self.assertEqual(ast.literal_eval('{1, 2, 3}'), {1, 2, 3}) | 
 |         self.assertEqual(ast.literal_eval('b"hi"'), b"hi") | 
 |         self.assertRaises(ValueError, ast.literal_eval, 'foo()') | 
 |         self.assertEqual(ast.literal_eval('-6'), -6) | 
 |         self.assertEqual(ast.literal_eval('-6j+3'), 3-6j) | 
 |         self.assertEqual(ast.literal_eval('3.25'), 3.25) | 
 |  | 
 |     def test_literal_eval_issue4907(self): | 
 |         self.assertEqual(ast.literal_eval('2j'), 2j) | 
 |         self.assertEqual(ast.literal_eval('10 + 2j'), 10 + 2j) | 
 |         self.assertEqual(ast.literal_eval('1.5 - 2j'), 1.5 - 2j) | 
 |  | 
 |     def test_bad_integer(self): | 
 |         # issue13436: Bad error message with invalid numeric values | 
 |         body = [ast.ImportFrom(module='time', | 
 |                                names=[ast.alias(name='sleep')], | 
 |                                level=None, | 
 |                                lineno=None, col_offset=None)] | 
 |         mod = ast.Module(body) | 
 |         with self.assertRaises(ValueError) as cm: | 
 |             compile(mod, 'test', 'exec') | 
 |         self.assertIn("invalid integer value: None", str(cm.exception)) | 
 |  | 
 |  | 
 | class ASTValidatorTests(unittest.TestCase): | 
 |  | 
 |     def mod(self, mod, msg=None, mode="exec", *, exc=ValueError): | 
 |         mod.lineno = mod.col_offset = 0 | 
 |         ast.fix_missing_locations(mod) | 
 |         with self.assertRaises(exc) as cm: | 
 |             compile(mod, "<test>", mode) | 
 |         if msg is not None: | 
 |             self.assertIn(msg, str(cm.exception)) | 
 |  | 
 |     def expr(self, node, msg=None, *, exc=ValueError): | 
 |         mod = ast.Module([ast.Expr(node)]) | 
 |         self.mod(mod, msg, exc=exc) | 
 |  | 
 |     def stmt(self, stmt, msg=None): | 
 |         mod = ast.Module([stmt]) | 
 |         self.mod(mod, msg) | 
 |  | 
 |     def test_module(self): | 
 |         m = ast.Interactive([ast.Expr(ast.Name("x", ast.Store()))]) | 
 |         self.mod(m, "must have Load context", "single") | 
 |         m = ast.Expression(ast.Name("x", ast.Store())) | 
 |         self.mod(m, "must have Load context", "eval") | 
 |  | 
 |     def _check_arguments(self, fac, check): | 
 |         def arguments(args=None, vararg=None, | 
 |                       kwonlyargs=None, kwarg=None, | 
 |                       defaults=None, kw_defaults=None): | 
 |             if args is None: | 
 |                 args = [] | 
 |             if kwonlyargs is None: | 
 |                 kwonlyargs = [] | 
 |             if defaults is None: | 
 |                 defaults = [] | 
 |             if kw_defaults is None: | 
 |                 kw_defaults = [] | 
 |             args = ast.arguments(args, vararg, kwonlyargs, kw_defaults, | 
 |                                  kwarg, defaults) | 
 |             return fac(args) | 
 |         args = [ast.arg("x", ast.Name("x", ast.Store()))] | 
 |         check(arguments(args=args), "must have Load context") | 
 |         check(arguments(kwonlyargs=args), "must have Load context") | 
 |         check(arguments(defaults=[ast.Num(3)]), | 
 |                        "more positional defaults than args") | 
 |         check(arguments(kw_defaults=[ast.Num(4)]), | 
 |                        "length of kwonlyargs is not the same as kw_defaults") | 
 |         args = [ast.arg("x", ast.Name("x", ast.Load()))] | 
 |         check(arguments(args=args, defaults=[ast.Name("x", ast.Store())]), | 
 |                        "must have Load context") | 
 |         args = [ast.arg("a", ast.Name("x", ast.Load())), | 
 |                 ast.arg("b", ast.Name("y", ast.Load()))] | 
 |         check(arguments(kwonlyargs=args, | 
 |                           kw_defaults=[None, ast.Name("x", ast.Store())]), | 
 |                           "must have Load context") | 
 |  | 
 |     def test_funcdef(self): | 
 |         a = ast.arguments([], None, [], [], None, []) | 
 |         f = ast.FunctionDef("x", a, [], [], None) | 
 |         self.stmt(f, "empty body on FunctionDef") | 
 |         f = ast.FunctionDef("x", a, [ast.Pass()], [ast.Name("x", ast.Store())], | 
 |                             None) | 
 |         self.stmt(f, "must have Load context") | 
 |         f = ast.FunctionDef("x", a, [ast.Pass()], [], | 
 |                             ast.Name("x", ast.Store())) | 
 |         self.stmt(f, "must have Load context") | 
 |         def fac(args): | 
 |             return ast.FunctionDef("x", args, [ast.Pass()], [], None) | 
 |         self._check_arguments(fac, self.stmt) | 
 |  | 
 |     def test_classdef(self): | 
 |         def cls(bases=None, keywords=None, starargs=None, kwargs=None, | 
 |                 body=None, decorator_list=None): | 
 |             if bases is None: | 
 |                 bases = [] | 
 |             if keywords is None: | 
 |                 keywords = [] | 
 |             if body is None: | 
 |                 body = [ast.Pass()] | 
 |             if decorator_list is None: | 
 |                 decorator_list = [] | 
 |             return ast.ClassDef("myclass", bases, keywords, starargs, | 
 |                                 kwargs, body, decorator_list) | 
 |         self.stmt(cls(bases=[ast.Name("x", ast.Store())]), | 
 |                   "must have Load context") | 
 |         self.stmt(cls(keywords=[ast.keyword("x", ast.Name("x", ast.Store()))]), | 
 |                   "must have Load context") | 
 |         self.stmt(cls(starargs=ast.Name("x", ast.Store())), | 
 |                   "must have Load context") | 
 |         self.stmt(cls(kwargs=ast.Name("x", ast.Store())), | 
 |                   "must have Load context") | 
 |         self.stmt(cls(body=[]), "empty body on ClassDef") | 
 |         self.stmt(cls(body=[None]), "None disallowed") | 
 |         self.stmt(cls(decorator_list=[ast.Name("x", ast.Store())]), | 
 |                   "must have Load context") | 
 |  | 
 |     def test_delete(self): | 
 |         self.stmt(ast.Delete([]), "empty targets on Delete") | 
 |         self.stmt(ast.Delete([None]), "None disallowed") | 
 |         self.stmt(ast.Delete([ast.Name("x", ast.Load())]), | 
 |                   "must have Del context") | 
 |  | 
 |     def test_assign(self): | 
 |         self.stmt(ast.Assign([], ast.Num(3)), "empty targets on Assign") | 
 |         self.stmt(ast.Assign([None], ast.Num(3)), "None disallowed") | 
 |         self.stmt(ast.Assign([ast.Name("x", ast.Load())], ast.Num(3)), | 
 |                   "must have Store context") | 
 |         self.stmt(ast.Assign([ast.Name("x", ast.Store())], | 
 |                                 ast.Name("y", ast.Store())), | 
 |                   "must have Load context") | 
 |  | 
 |     def test_augassign(self): | 
 |         aug = ast.AugAssign(ast.Name("x", ast.Load()), ast.Add(), | 
 |                             ast.Name("y", ast.Load())) | 
 |         self.stmt(aug, "must have Store context") | 
 |         aug = ast.AugAssign(ast.Name("x", ast.Store()), ast.Add(), | 
 |                             ast.Name("y", ast.Store())) | 
 |         self.stmt(aug, "must have Load context") | 
 |  | 
 |     def test_for(self): | 
 |         x = ast.Name("x", ast.Store()) | 
 |         y = ast.Name("y", ast.Load()) | 
 |         p = ast.Pass() | 
 |         self.stmt(ast.For(x, y, [], []), "empty body on For") | 
 |         self.stmt(ast.For(ast.Name("x", ast.Load()), y, [p], []), | 
 |                   "must have Store context") | 
 |         self.stmt(ast.For(x, ast.Name("y", ast.Store()), [p], []), | 
 |                   "must have Load context") | 
 |         e = ast.Expr(ast.Name("x", ast.Store())) | 
 |         self.stmt(ast.For(x, y, [e], []), "must have Load context") | 
 |         self.stmt(ast.For(x, y, [p], [e]), "must have Load context") | 
 |  | 
 |     def test_while(self): | 
 |         self.stmt(ast.While(ast.Num(3), [], []), "empty body on While") | 
 |         self.stmt(ast.While(ast.Name("x", ast.Store()), [ast.Pass()], []), | 
 |                   "must have Load context") | 
 |         self.stmt(ast.While(ast.Num(3), [ast.Pass()], | 
 |                              [ast.Expr(ast.Name("x", ast.Store()))]), | 
 |                              "must have Load context") | 
 |  | 
 |     def test_if(self): | 
 |         self.stmt(ast.If(ast.Num(3), [], []), "empty body on If") | 
 |         i = ast.If(ast.Name("x", ast.Store()), [ast.Pass()], []) | 
 |         self.stmt(i, "must have Load context") | 
 |         i = ast.If(ast.Num(3), [ast.Expr(ast.Name("x", ast.Store()))], []) | 
 |         self.stmt(i, "must have Load context") | 
 |         i = ast.If(ast.Num(3), [ast.Pass()], | 
 |                    [ast.Expr(ast.Name("x", ast.Store()))]) | 
 |         self.stmt(i, "must have Load context") | 
 |  | 
 |     def test_with(self): | 
 |         p = ast.Pass() | 
 |         self.stmt(ast.With([], [p]), "empty items on With") | 
 |         i = ast.withitem(ast.Num(3), None) | 
 |         self.stmt(ast.With([i], []), "empty body on With") | 
 |         i = ast.withitem(ast.Name("x", ast.Store()), None) | 
 |         self.stmt(ast.With([i], [p]), "must have Load context") | 
 |         i = ast.withitem(ast.Num(3), ast.Name("x", ast.Load())) | 
 |         self.stmt(ast.With([i], [p]), "must have Store context") | 
 |  | 
 |     def test_raise(self): | 
 |         r = ast.Raise(None, ast.Num(3)) | 
 |         self.stmt(r, "Raise with cause but no exception") | 
 |         r = ast.Raise(ast.Name("x", ast.Store()), None) | 
 |         self.stmt(r, "must have Load context") | 
 |         r = ast.Raise(ast.Num(4), ast.Name("x", ast.Store())) | 
 |         self.stmt(r, "must have Load context") | 
 |  | 
 |     def test_try(self): | 
 |         p = ast.Pass() | 
 |         t = ast.Try([], [], [], [p]) | 
 |         self.stmt(t, "empty body on Try") | 
 |         t = ast.Try([ast.Expr(ast.Name("x", ast.Store()))], [], [], [p]) | 
 |         self.stmt(t, "must have Load context") | 
 |         t = ast.Try([p], [], [], []) | 
 |         self.stmt(t, "Try has neither except handlers nor finalbody") | 
 |         t = ast.Try([p], [], [p], [p]) | 
 |         self.stmt(t, "Try has orelse but no except handlers") | 
 |         t = ast.Try([p], [ast.ExceptHandler(None, "x", [])], [], []) | 
 |         self.stmt(t, "empty body on ExceptHandler") | 
 |         e = [ast.ExceptHandler(ast.Name("x", ast.Store()), "y", [p])] | 
 |         self.stmt(ast.Try([p], e, [], []), "must have Load context") | 
 |         e = [ast.ExceptHandler(None, "x", [p])] | 
 |         t = ast.Try([p], e, [ast.Expr(ast.Name("x", ast.Store()))], [p]) | 
 |         self.stmt(t, "must have Load context") | 
 |         t = ast.Try([p], e, [p], [ast.Expr(ast.Name("x", ast.Store()))]) | 
 |         self.stmt(t, "must have Load context") | 
 |  | 
 |     def test_assert(self): | 
 |         self.stmt(ast.Assert(ast.Name("x", ast.Store()), None), | 
 |                   "must have Load context") | 
 |         assrt = ast.Assert(ast.Name("x", ast.Load()), | 
 |                            ast.Name("y", ast.Store())) | 
 |         self.stmt(assrt, "must have Load context") | 
 |  | 
 |     def test_import(self): | 
 |         self.stmt(ast.Import([]), "empty names on Import") | 
 |  | 
 |     def test_importfrom(self): | 
 |         imp = ast.ImportFrom(None, [ast.alias("x", None)], -42) | 
 |         self.stmt(imp, "level less than -1") | 
 |         self.stmt(ast.ImportFrom(None, [], 0), "empty names on ImportFrom") | 
 |  | 
 |     def test_global(self): | 
 |         self.stmt(ast.Global([]), "empty names on Global") | 
 |  | 
 |     def test_nonlocal(self): | 
 |         self.stmt(ast.Nonlocal([]), "empty names on Nonlocal") | 
 |  | 
 |     def test_expr(self): | 
 |         e = ast.Expr(ast.Name("x", ast.Store())) | 
 |         self.stmt(e, "must have Load context") | 
 |  | 
 |     def test_boolop(self): | 
 |         b = ast.BoolOp(ast.And(), []) | 
 |         self.expr(b, "less than 2 values") | 
 |         b = ast.BoolOp(ast.And(), [ast.Num(3)]) | 
 |         self.expr(b, "less than 2 values") | 
 |         b = ast.BoolOp(ast.And(), [ast.Num(4), None]) | 
 |         self.expr(b, "None disallowed") | 
 |         b = ast.BoolOp(ast.And(), [ast.Num(4), ast.Name("x", ast.Store())]) | 
 |         self.expr(b, "must have Load context") | 
 |  | 
 |     def test_unaryop(self): | 
 |         u = ast.UnaryOp(ast.Not(), ast.Name("x", ast.Store())) | 
 |         self.expr(u, "must have Load context") | 
 |  | 
 |     def test_lambda(self): | 
 |         a = ast.arguments([], None, [], [], None, []) | 
 |         self.expr(ast.Lambda(a, ast.Name("x", ast.Store())), | 
 |                   "must have Load context") | 
 |         def fac(args): | 
 |             return ast.Lambda(args, ast.Name("x", ast.Load())) | 
 |         self._check_arguments(fac, self.expr) | 
 |  | 
 |     def test_ifexp(self): | 
 |         l = ast.Name("x", ast.Load()) | 
 |         s = ast.Name("y", ast.Store()) | 
 |         for args in (s, l, l), (l, s, l), (l, l, s): | 
 |             self.expr(ast.IfExp(*args), "must have Load context") | 
 |  | 
 |     def test_dict(self): | 
 |         d = ast.Dict([], [ast.Name("x", ast.Load())]) | 
 |         self.expr(d, "same number of keys as values") | 
 |         d = ast.Dict([None], [ast.Name("x", ast.Load())]) | 
 |         self.expr(d, "None disallowed") | 
 |         d = ast.Dict([ast.Name("x", ast.Load())], [None]) | 
 |         self.expr(d, "None disallowed") | 
 |  | 
 |     def test_set(self): | 
 |         self.expr(ast.Set([None]), "None disallowed") | 
 |         s = ast.Set([ast.Name("x", ast.Store())]) | 
 |         self.expr(s, "must have Load context") | 
 |  | 
 |     def _check_comprehension(self, fac): | 
 |         self.expr(fac([]), "comprehension with no generators") | 
 |         g = ast.comprehension(ast.Name("x", ast.Load()), | 
 |                               ast.Name("x", ast.Load()), []) | 
 |         self.expr(fac([g]), "must have Store context") | 
 |         g = ast.comprehension(ast.Name("x", ast.Store()), | 
 |                               ast.Name("x", ast.Store()), []) | 
 |         self.expr(fac([g]), "must have Load context") | 
 |         x = ast.Name("x", ast.Store()) | 
 |         y = ast.Name("y", ast.Load()) | 
 |         g = ast.comprehension(x, y, [None]) | 
 |         self.expr(fac([g]), "None disallowed") | 
 |         g = ast.comprehension(x, y, [ast.Name("x", ast.Store())]) | 
 |         self.expr(fac([g]), "must have Load context") | 
 |  | 
 |     def _simple_comp(self, fac): | 
 |         g = ast.comprehension(ast.Name("x", ast.Store()), | 
 |                               ast.Name("x", ast.Load()), []) | 
 |         self.expr(fac(ast.Name("x", ast.Store()), [g]), | 
 |                   "must have Load context") | 
 |         def wrap(gens): | 
 |             return fac(ast.Name("x", ast.Store()), gens) | 
 |         self._check_comprehension(wrap) | 
 |  | 
 |     def test_listcomp(self): | 
 |         self._simple_comp(ast.ListComp) | 
 |  | 
 |     def test_setcomp(self): | 
 |         self._simple_comp(ast.SetComp) | 
 |  | 
 |     def test_generatorexp(self): | 
 |         self._simple_comp(ast.GeneratorExp) | 
 |  | 
 |     def test_dictcomp(self): | 
 |         g = ast.comprehension(ast.Name("y", ast.Store()), | 
 |                               ast.Name("p", ast.Load()), []) | 
 |         c = ast.DictComp(ast.Name("x", ast.Store()), | 
 |                          ast.Name("y", ast.Load()), [g]) | 
 |         self.expr(c, "must have Load context") | 
 |         c = ast.DictComp(ast.Name("x", ast.Load()), | 
 |                          ast.Name("y", ast.Store()), [g]) | 
 |         self.expr(c, "must have Load context") | 
 |         def factory(comps): | 
 |             k = ast.Name("x", ast.Load()) | 
 |             v = ast.Name("y", ast.Load()) | 
 |             return ast.DictComp(k, v, comps) | 
 |         self._check_comprehension(factory) | 
 |  | 
 |     def test_yield(self): | 
 |         self.expr(ast.Yield(ast.Name("x", ast.Store())), "must have Load") | 
 |         self.expr(ast.YieldFrom(ast.Name("x", ast.Store())), "must have Load") | 
 |  | 
 |     def test_compare(self): | 
 |         left = ast.Name("x", ast.Load()) | 
 |         comp = ast.Compare(left, [ast.In()], []) | 
 |         self.expr(comp, "no comparators") | 
 |         comp = ast.Compare(left, [ast.In()], [ast.Num(4), ast.Num(5)]) | 
 |         self.expr(comp, "different number of comparators and operands") | 
 |         comp = ast.Compare(ast.Num("blah"), [ast.In()], [left]) | 
 |         self.expr(comp, "non-numeric", exc=TypeError) | 
 |         comp = ast.Compare(left, [ast.In()], [ast.Num("blah")]) | 
 |         self.expr(comp, "non-numeric", exc=TypeError) | 
 |  | 
 |     def test_call(self): | 
 |         func = ast.Name("x", ast.Load()) | 
 |         args = [ast.Name("y", ast.Load())] | 
 |         keywords = [ast.keyword("w", ast.Name("z", ast.Load()))] | 
 |         stararg = ast.Name("p", ast.Load()) | 
 |         kwarg = ast.Name("q", ast.Load()) | 
 |         call = ast.Call(ast.Name("x", ast.Store()), args, keywords, stararg, | 
 |                         kwarg) | 
 |         self.expr(call, "must have Load context") | 
 |         call = ast.Call(func, [None], keywords, stararg, kwarg) | 
 |         self.expr(call, "None disallowed") | 
 |         bad_keywords = [ast.keyword("w", ast.Name("z", ast.Store()))] | 
 |         call = ast.Call(func, args, bad_keywords, stararg, kwarg) | 
 |         self.expr(call, "must have Load context") | 
 |         call = ast.Call(func, args, keywords, ast.Name("z", ast.Store()), kwarg) | 
 |         self.expr(call, "must have Load context") | 
 |         call = ast.Call(func, args, keywords, stararg, | 
 |                         ast.Name("w", ast.Store())) | 
 |         self.expr(call, "must have Load context") | 
 |  | 
 |     def test_num(self): | 
 |         class subint(int): | 
 |             pass | 
 |         class subfloat(float): | 
 |             pass | 
 |         class subcomplex(complex): | 
 |             pass | 
 |         for obj in "0", "hello", subint(), subfloat(), subcomplex(): | 
 |             self.expr(ast.Num(obj), "non-numeric", exc=TypeError) | 
 |  | 
 |     def test_attribute(self): | 
 |         attr = ast.Attribute(ast.Name("x", ast.Store()), "y", ast.Load()) | 
 |         self.expr(attr, "must have Load context") | 
 |  | 
 |     def test_subscript(self): | 
 |         sub = ast.Subscript(ast.Name("x", ast.Store()), ast.Index(ast.Num(3)), | 
 |                             ast.Load()) | 
 |         self.expr(sub, "must have Load context") | 
 |         x = ast.Name("x", ast.Load()) | 
 |         sub = ast.Subscript(x, ast.Index(ast.Name("y", ast.Store())), | 
 |                             ast.Load()) | 
 |         self.expr(sub, "must have Load context") | 
 |         s = ast.Name("x", ast.Store()) | 
 |         for args in (s, None, None), (None, s, None), (None, None, s): | 
 |             sl = ast.Slice(*args) | 
 |             self.expr(ast.Subscript(x, sl, ast.Load()), | 
 |                       "must have Load context") | 
 |         sl = ast.ExtSlice([]) | 
 |         self.expr(ast.Subscript(x, sl, ast.Load()), "empty dims on ExtSlice") | 
 |         sl = ast.ExtSlice([ast.Index(s)]) | 
 |         self.expr(ast.Subscript(x, sl, ast.Load()), "must have Load context") | 
 |  | 
 |     def test_starred(self): | 
 |         left = ast.List([ast.Starred(ast.Name("x", ast.Load()), ast.Store())], | 
 |                         ast.Store()) | 
 |         assign = ast.Assign([left], ast.Num(4)) | 
 |         self.stmt(assign, "must have Store context") | 
 |  | 
 |     def _sequence(self, fac): | 
 |         self.expr(fac([None], ast.Load()), "None disallowed") | 
 |         self.expr(fac([ast.Name("x", ast.Store())], ast.Load()), | 
 |                   "must have Load context") | 
 |  | 
 |     def test_list(self): | 
 |         self._sequence(ast.List) | 
 |  | 
 |     def test_tuple(self): | 
 |         self._sequence(ast.Tuple) | 
 |  | 
 |     def test_nameconstant(self): | 
 |         self.expr(ast.NameConstant(4), "singleton must be True, False, or None") | 
 |  | 
 |     def test_stdlib_validates(self): | 
 |         stdlib = os.path.dirname(ast.__file__) | 
 |         tests = [fn for fn in os.listdir(stdlib) if fn.endswith(".py")] | 
 |         tests.extend(["test/test_grammar.py", "test/test_unpack_ex.py"]) | 
 |         for module in tests: | 
 |             fn = os.path.join(stdlib, module) | 
 |             with open(fn, "r", encoding="utf-8") as fp: | 
 |                 source = fp.read() | 
 |             mod = ast.parse(source, fn) | 
 |             compile(mod, fn, "exec") | 
 |  | 
 |  | 
 | def main(): | 
 |     if __name__ != '__main__': | 
 |         return | 
 |     if sys.argv[1:] == ['-g']: | 
 |         for statements, kind in ((exec_tests, "exec"), (single_tests, "single"), | 
 |                                  (eval_tests, "eval")): | 
 |             print(kind+"_results = [") | 
 |             for s in statements: | 
 |                 print(repr(to_tuple(compile(s, "?", kind, 0x400)))+",") | 
 |             print("]") | 
 |         print("main()") | 
 |         raise SystemExit | 
 |     unittest.main() | 
 |  | 
 | #### EVERYTHING BELOW IS GENERATED ##### | 
 | exec_results = [ | 
 | ('Module', [('Expr', (1, 0), ('NameConstant', (1, 0), None))]), | 
 | ('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, [], [], None, []), [('Pass', (1, 9))], [], None)]), | 
 | ('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [('arg', (1, 6), 'a', None)], None, [], [], None, []), [('Pass', (1, 10))], [], None)]), | 
 | ('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [('arg', (1, 6), 'a', None)], None, [], [], None, [('Num', (1, 8), 0)]), [('Pass', (1, 12))], [], None)]), | 
 | ('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], ('arg', (1, 7), 'args', None), [], [], None, []), [('Pass', (1, 14))], [], None)]), | 
 | ('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, [], [], ('arg', (1, 8), 'kwargs', None), []), [('Pass', (1, 17))], [], None)]), | 
 | ('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [('arg', (1, 6), 'a', None), ('arg', (1, 9), 'b', None), ('arg', (1, 14), 'c', None), ('arg', (1, 22), 'd', None), ('arg', (1, 28), 'e', None)], ('arg', (1, 35), 'args', None), [], [], ('arg', (1, 43), 'kwargs', None), [('Num', (1, 11), 1), ('NameConstant', (1, 16), None), ('List', (1, 24), [], ('Load',)), ('Dict', (1, 30), [], [])]), [('Pass', (1, 52))], [], None)]), | 
 | ('Module', [('ClassDef', (1, 0), 'C', [], [], None, None, [('Pass', (1, 8))], [])]), | 
 | ('Module', [('ClassDef', (1, 0), 'C', [('Name', (1, 8), 'object', ('Load',))], [], None, None, [('Pass', (1, 17))], [])]), | 
 | ('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, [], [], None, []), [('Return', (1, 8), ('Num', (1, 15), 1))], [], None)]), | 
 | ('Module', [('Delete', (1, 0), [('Name', (1, 4), 'v', ('Del',))])]), | 
 | ('Module', [('Assign', (1, 0), [('Name', (1, 0), 'v', ('Store',))], ('Num', (1, 4), 1))]), | 
 | ('Module', [('AugAssign', (1, 0), ('Name', (1, 0), 'v', ('Store',)), ('Add',), ('Num', (1, 5), 1))]), | 
 | ('Module', [('For', (1, 0), ('Name', (1, 4), 'v', ('Store',)), ('Name', (1, 9), 'v', ('Load',)), [('Pass', (1, 11))], [])]), | 
 | ('Module', [('While', (1, 0), ('Name', (1, 6), 'v', ('Load',)), [('Pass', (1, 8))], [])]), | 
 | ('Module', [('If', (1, 0), ('Name', (1, 3), 'v', ('Load',)), [('Pass', (1, 5))], [])]), | 
 | ('Module', [('With', (1, 0), [('withitem', ('Name', (1, 5), 'x', ('Load',)), ('Name', (1, 10), 'y', ('Store',)))], [('Pass', (1, 13))])]), | 
 | ('Module', [('With', (1, 0), [('withitem', ('Name', (1, 5), 'x', ('Load',)), ('Name', (1, 10), 'y', ('Store',))), ('withitem', ('Name', (1, 13), 'z', ('Load',)), ('Name', (1, 18), 'q', ('Store',)))], [('Pass', (1, 21))])]), | 
 | ('Module', [('Raise', (1, 0), ('Call', (1, 15), ('Name', (1, 6), 'Exception', ('Load',)), [('Str', (1, 16), 'string')], [], None, None), None)]), | 
 | ('Module', [('Try', (1, 0), [('Pass', (2, 2))], [('ExceptHandler', (3, 0), ('Name', (3, 7), 'Exception', ('Load',)), None, [('Pass', (4, 2))])], [], [])]), | 
 | ('Module', [('Try', (1, 0), [('Pass', (2, 2))], [], [], [('Pass', (4, 2))])]), | 
 | ('Module', [('Assert', (1, 0), ('Name', (1, 7), 'v', ('Load',)), None)]), | 
 | ('Module', [('Import', (1, 0), [('alias', 'sys', None)])]), | 
 | ('Module', [('ImportFrom', (1, 0), 'sys', [('alias', 'v', None)], 0)]), | 
 | ('Module', [('Global', (1, 0), ['v'])]), | 
 | ('Module', [('Expr', (1, 0), ('Num', (1, 0), 1))]), | 
 | ('Module', [('Pass', (1, 0))]), | 
 | ('Module', [('Break', (1, 0))]), | 
 | ('Module', [('Continue', (1, 0))]), | 
 | ('Module', [('For', (1, 0), ('Tuple', (1, 4), [('Name', (1, 4), 'a', ('Store',)), ('Name', (1, 6), 'b', ('Store',))], ('Store',)), ('Name', (1, 11), 'c', ('Load',)), [('Pass', (1, 14))], [])]), | 
 | ('Module', [('Expr', (1, 0), ('ListComp', (1, 1), ('Tuple', (1, 2), [('Name', (1, 2), 'a', ('Load',)), ('Name', (1, 4), 'b', ('Load',))], ('Load',)), [('comprehension', ('Tuple', (1, 11), [('Name', (1, 11), 'a', ('Store',)), ('Name', (1, 13), 'b', ('Store',))], ('Store',)), ('Name', (1, 18), 'c', ('Load',)), [])]))]), | 
 | ('Module', [('Expr', (1, 0), ('GeneratorExp', (1, 1), ('Tuple', (1, 2), [('Name', (1, 2), 'a', ('Load',)), ('Name', (1, 4), 'b', ('Load',))], ('Load',)), [('comprehension', ('Tuple', (1, 11), [('Name', (1, 11), 'a', ('Store',)), ('Name', (1, 13), 'b', ('Store',))], ('Store',)), ('Name', (1, 18), 'c', ('Load',)), [])]))]), | 
 | ('Module', [('Expr', (1, 0), ('GeneratorExp', (1, 1), ('Tuple', (1, 2), [('Name', (1, 2), 'a', ('Load',)), ('Name', (1, 4), 'b', ('Load',))], ('Load',)), [('comprehension', ('Tuple', (1, 12), [('Name', (1, 12), 'a', ('Store',)), ('Name', (1, 14), 'b', ('Store',))], ('Store',)), ('Name', (1, 20), 'c', ('Load',)), [])]))]), | 
 | ('Module', [('Expr', (1, 0), ('GeneratorExp', (2, 4), ('Tuple', (3, 4), [('Name', (3, 4), 'Aa', ('Load',)), ('Name', (5, 7), 'Bb', ('Load',))], ('Load',)), [('comprehension', ('Tuple', (8, 4), [('Name', (8, 4), 'Aa', ('Store',)), ('Name', (10, 4), 'Bb', ('Store',))], ('Store',)), ('Name', (10, 10), 'Cc', ('Load',)), [])]))]), | 
 | ('Module', [('Expr', (1, 0), ('DictComp', (1, 1), ('Name', (1, 1), 'a', ('Load',)), ('Name', (1, 5), 'b', ('Load',)), [('comprehension', ('Name', (1, 11), 'w', ('Store',)), ('Name', (1, 16), 'x', ('Load',)), []), ('comprehension', ('Name', (1, 22), 'm', ('Store',)), ('Name', (1, 27), 'p', ('Load',)), [('Name', (1, 32), 'g', ('Load',))])]))]), | 
 | ('Module', [('Expr', (1, 0), ('DictComp', (1, 1), ('Name', (1, 1), 'a', ('Load',)), ('Name', (1, 5), 'b', ('Load',)), [('comprehension', ('Tuple', (1, 11), [('Name', (1, 11), 'v', ('Store',)), ('Name', (1, 13), 'w', ('Store',))], ('Store',)), ('Name', (1, 18), 'x', ('Load',)), [])]))]), | 
 | ('Module', [('Expr', (1, 0), ('SetComp', (1, 1), ('Name', (1, 1), 'r', ('Load',)), [('comprehension', ('Name', (1, 7), 'l', ('Store',)), ('Name', (1, 12), 'x', ('Load',)), [('Name', (1, 17), 'g', ('Load',))])]))]), | 
 | ('Module', [('Expr', (1, 0), ('SetComp', (1, 1), ('Name', (1, 1), 'r', ('Load',)), [('comprehension', ('Tuple', (1, 7), [('Name', (1, 7), 'l', ('Store',)), ('Name', (1, 9), 'm', ('Store',))], ('Store',)), ('Name', (1, 14), 'x', ('Load',)), [])]))]), | 
 | ] | 
 | single_results = [ | 
 | ('Interactive', [('Expr', (1, 0), ('BinOp', (1, 0), ('Num', (1, 0), 1), ('Add',), ('Num', (1, 2), 2)))]), | 
 | ] | 
 | eval_results = [ | 
 | ('Expression', ('NameConstant', (1, 0), None)), | 
 | ('Expression', ('BoolOp', (1, 0), ('And',), [('Name', (1, 0), 'a', ('Load',)), ('Name', (1, 6), 'b', ('Load',))])), | 
 | ('Expression', ('BinOp', (1, 0), ('Name', (1, 0), 'a', ('Load',)), ('Add',), ('Name', (1, 4), 'b', ('Load',)))), | 
 | ('Expression', ('UnaryOp', (1, 0), ('Not',), ('Name', (1, 4), 'v', ('Load',)))), | 
 | ('Expression', ('Lambda', (1, 0), ('arguments', [], None, [], [], None, []), ('NameConstant', (1, 7), None))), | 
 | ('Expression', ('Dict', (1, 0), [('Num', (1, 2), 1)], [('Num', (1, 4), 2)])), | 
 | ('Expression', ('Dict', (1, 0), [], [])), | 
 | ('Expression', ('Set', (1, 0), [('NameConstant', (1, 1), None)])), | 
 | ('Expression', ('Dict', (1, 0), [('Num', (2, 6), 1)], [('Num', (4, 10), 2)])), | 
 | ('Expression', ('ListComp', (1, 1), ('Name', (1, 1), 'a', ('Load',)), [('comprehension', ('Name', (1, 7), 'b', ('Store',)), ('Name', (1, 12), 'c', ('Load',)), [('Name', (1, 17), 'd', ('Load',))])])), | 
 | ('Expression', ('GeneratorExp', (1, 1), ('Name', (1, 1), 'a', ('Load',)), [('comprehension', ('Name', (1, 7), 'b', ('Store',)), ('Name', (1, 12), 'c', ('Load',)), [('Name', (1, 17), 'd', ('Load',))])])), | 
 | ('Expression', ('Compare', (1, 0), ('Num', (1, 0), 1), [('Lt',), ('Lt',)], [('Num', (1, 4), 2), ('Num', (1, 8), 3)])), | 
 | ('Expression', ('Call', (1, 1), ('Name', (1, 0), 'f', ('Load',)), [('Num', (1, 2), 1), ('Num', (1, 4), 2)], [('keyword', 'c', ('Num', (1, 8), 3))], ('Name', (1, 11), 'd', ('Load',)), ('Name', (1, 15), 'e', ('Load',)))), | 
 | ('Expression', ('Num', (1, 0), 10)), | 
 | ('Expression', ('Str', (1, 0), 'string')), | 
 | ('Expression', ('Attribute', (1, 2), ('Name', (1, 0), 'a', ('Load',)), 'b', ('Load',))), | 
 | ('Expression', ('Subscript', (1, 2), ('Name', (1, 0), 'a', ('Load',)), ('Slice', ('Name', (1, 2), 'b', ('Load',)), ('Name', (1, 4), 'c', ('Load',)), None), ('Load',))), | 
 | ('Expression', ('Name', (1, 0), 'v', ('Load',))), | 
 | ('Expression', ('List', (1, 0), [('Num', (1, 1), 1), ('Num', (1, 3), 2), ('Num', (1, 5), 3)], ('Load',))), | 
 | ('Expression', ('List', (1, 0), [], ('Load',))), | 
 | ('Expression', ('Tuple', (1, 0), [('Num', (1, 0), 1), ('Num', (1, 2), 2), ('Num', (1, 4), 3)], ('Load',))), | 
 | ('Expression', ('Tuple', (1, 1), [('Num', (1, 1), 1), ('Num', (1, 3), 2), ('Num', (1, 5), 3)], ('Load',))), | 
 | ('Expression', ('Tuple', (1, 0), [], ('Load',))), | 
 | ('Expression', ('Call', (1, 7), ('Attribute', (1, 6), ('Attribute', (1, 4), ('Attribute', (1, 2), ('Name', (1, 0), 'a', ('Load',)), 'b', ('Load',)), 'c', ('Load',)), 'd', ('Load',)), [('Subscript', (1, 12), ('Attribute', (1, 10), ('Name', (1, 8), 'a', ('Load',)), 'b', ('Load',)), ('Slice', ('Num', (1, 12), 1), ('Num', (1, 14), 2), None), ('Load',))], [], None, None)), | 
 | ] | 
 | main() |